MIL-DTL-38999 Series II connectors offer reliable connectivity in harsh environments, featuring up to 128 contacts in a sealed insert. With an operating temperature range of -65 °C to 200 °C, these connectors are suitable for a wide range of applications. Available in various mounting styles, including front and rear wall mount, jam nut, and box mount receptacles, they provide flexibility in installation. The connectors come in 9 shell sizes and 52 insert arrangements, accommodating M39029 rear release crimp contacts in different sizes. Constructed with aluminum shells and offering plating options such as cadmium and nickel, they ensure durability and corrosion resistance. These connectors, meeting MIL-DTL-38999 II specifications, are ideal for military or industrial use, with RoHS compliant options available.